Results 51 to 60 of about 1,509,637 (194)

A Risk Comparison of Ordinary Least Squares vs Ridge Regression [PDF]

open access: yes, 2013
We compare the risk of ridge regression to a simple variant of ordinary least squares, in which one simply projects the data onto a finite dimensional subspace (as specified by a Principal Component Analysis) and then performs an ordinary (un-regularized)
Dean P. Foster   +4 more
core   +3 more sources

Assessment of longitudinal modulus of elasticity in structural elements of Pinus Caribaea timber beams

open access: yesVértices, 2012
The current standard NBR 7190/1997 (Project of Timber Structures) makes no reference to tests for determining the stiffness and strength in parts of structural lumber; restricting the analysis to bodies-of-tests with small dimensions and without defects.
André Luis Christoforo   +4 more
doaj   +1 more source

Efficient Parameters Estimation Method for the Separable Nonlinear Least Squares Problem

open access: yesComplexity, 2020
In this work, we combine the special structure of the separable nonlinear least squares problem with a variable projection algorithm based on singular value decomposition to separate linear and nonlinear parameters. Then, we propose finding the nonlinear
Ke Wang   +3 more
doaj   +1 more source

Least Squares Method For Solving Integral Equations With Multiple Time Lags [PDF]

open access: yesEngineering and Technology Journal, 2010
The main purpose of this work is to propose an approximate method to solveintegral equation with multiple time lags (IEMTL) namely least squares methodwith aid of Chebyshev polynomials of (first, second, third, and fourth)kinds.Example is given as an ...
Suha N. Shehab   +2 more
doaj   +1 more source

Single Projection Kaczmarz Extended Algorithms

open access: yes, 2015
To find the least squares solution of a very large and inconsistent system of equations, one can employ the extended Kaczmarz algorithm. This method simultaneously removes the error term, such that a consistent system is asymptotically obtained, and ...
Petra, Stefania, Popa, Constantin
core   +1 more source

Space-time least-squares isogeometric method and efficient solver for parabolic problems

open access: yes, 2019
In this paper, we propose a space-time least-squares isogeometric method to solve parabolic evolution problems, well suited for high-degree smooth splines in the space-time domain. We focus on the linear solver and its computational efficiency: thanks to
Montardini, Monica   +3 more
core   +1 more source

Least Squares Approach to Locally Weighted Naive Bayes Method

open access: yesJournal of New Results in Science, 2012
This study proposes a new approach which calculates the weights of Locally Weighted Naive Bayes (LWNB) developed on Naive Bayes (NB) which is known with its simple structure.
Kemal Adem, Onur Comert, Umut Orhan
doaj  

Optimal least-squares finite element method for elliptic problems [PDF]

open access: yes
An optimal least squares finite element method is proposed for two dimensional and three dimensional elliptic problems and its advantages are discussed over the mixed Galerkin method and the usual least squares finite element method.
Jiang, Bo-Nan, Povinelli, Louis A.
core   +1 more source

Least-squares Fourier phase estimation from the modulo 2Pi bispectrum phase [PDF]

open access: yes, 1991
The recovery of Fourier phases from measurements of the bispectrum occupies a vital role in many astronomical speckle imaging schemes. In arecent paper [J. Opt. Soc. Am.
Haniff, Christopher A.
core  

Approximate Solution of Fractional Integro-Differential Equations by Least Squares Method

open access: yesInternational Journal of Analysis and Applications, 2019
In this paper, least squares approximation method is developed for solving a class of linear fractional integro-differential equations comprising Volterra and Fredhlom cases.
D. Jabari Sabeg   +2 more
doaj   +2 more sources

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